Cemetery gardener Michael Koenigsfeld kneels besides the digital gravestone of his aunt Christine Lueck on October 30, 2008 at the cemetery of Cologne's Porz-Ensen district, western Germany. Pictures from aunt Christine's life are displayed on a screen which can be covered and locked. The gravestone is powered by a rechargeable battery, but there are also digital gravestones running with solar energy. The pictures are transmitted via USB-stick. Prices for digital gravestones start at 4,500 euros.